Stove



sepnzl, 1943. Q KRlNER 2,329,993

` STOVE Filed June 17, 1941 2 Sheets-Sheet 2 Syvum/vtm OSCAR Ri/VER Patented Sept. 21, 1943 UNITED STATES PATENT OFFICE STOVE oscar Kriner, Martinsville, 1nd.l

Application June 17, 1941, Serial No. 398,473

(Cl. 12S-T3) Claims.

tion which may be assembled with other similarA blocks to provide an efficient stove flue having a plurality of draft openings which are arranged in a manner to be shielded to prevent the openings from being clogged.

Another object of this invention is'the' production of a cast base which supports the iiue in such a manner. as to provide an under the flue draft.

Other objects and advantages of the present invention will appearthroughout the following speciiicatlon and claims.

In the drawings:

Figure 1 is a vertical sectional View of a stove, certain parts being shown in elevation and showing the improved ue assembly;

Figure 2 is a horizontal sectional View taken on 1ine2-2 of Figure 1;

Figure 3 is a horizontal sectional view taken on line 3 3 of Figure l; l

Figure 4 is a horizontal sectional view taken on line 4-4 of Figure l;

Figure 5 is a vertical sectional view taken on line 5-5 of Figure 2;

Figure 6 is a fragmentary perspective View of the showing vide a plurality of cast base blocks or segments I4 which rest upon the ring I 3, and lit close against the lower portion of the drum II, as shown in Figures 1 and'3. These base blocks or segments I4 constitute a supportfor the flue blocks hereinafter described. Each' block I4 is curved to t snugly against the inner face of the drum II, and is provided at each end with a vertically extending inwardly tapering rib I5, as shown in detail in Figure 8, and also illustrated in Figure 3. The lower end of each rib I5 is notched, as at I6, near its inner face so as to iit snugly over the ledge portion II of the ring Ilianote Figure l. In this manner the base blocks or segments which constitute segmental blocks I4 will be firmly anchored in position and I the respective ends of the blocks I4 t snugly against the usual re clay brick to form a circular unit to' protect the lower portion of the drum II, as will be obvious by considering Figure 1.

Within the stove ID, and arranged at opposite sides between the conventional stove lining A, I provide a special ilue lining which comprises a plurality of flue blocks I8 arranged in a series one above the other, as indicated in Figure l, to a desired heighth within the stove I0, and the lower block resting upon the upper edge of the segmental block I4 above described, each block I8 comprising a straight-walled body having a straight vertical outer wall I9 anda transversely straight inner wall 20, which wall 20 is inclined from the lower edge of the block upwardly to ward the front wall of the block. The upper and lower ends of the blocks I8 are at so that the lower edge of one block I8 may rest upon the fiat upper edge of the lower block, as shown in Figures 1, 6, 7 and 9. The vertical side edges 2i are inclined from the outer toward the inner wall so as to permit the inclined side edges of the adjoining blocks to snugly t against the lining or re clay brick A. The lower faces of the lower blocks I8 rest upon the upper faces 22 of the ribsl I5'of the segmental -blocks I4, and these blocks IB span the curved portions of the blocks I4, thereby providing under the flue draft through the ports 23 formed by the differences in shape of the blocks I8 and the blocks I4.

By referring to the drawings, it will .be seen I that I0 designates the stove which is provided with the conventional drum II and a lining I2. A grate I 3 is supported within the stove on the ring I3- of the conventional type. The ring I3a is supported by the bolts I 4a which secure the legs |58 to the stove.

In carrying out my invention, I preferably problocks register with the ports 23 above described,

therebyrenlarging the area adjacent the ports 28 and directing the draft upwardly between the lining I2 of the stove and the outer faces I9 of the blocks IB. These inclined notches 24 are inclined from a point inset from the inner faces and from the bottom edges of the blocks and upwardly toward the outer faces of the blocks. Each block I8 is also prt='ided with an inclined notch' 25 at its upper end and the inclined notches are inclined from the inner faces 20 of the blocks from a point below the upper edges of the blocks upwardly to points inset from the outer faces I9 of the blocks. Consequently, when one block is set upon the upper edge of a lower block in the manner as shown in the drawings, the upper blocks I8 being placed directly above the lower block I8, as shown in Figures 6 and 7. The upper notches 25 in the lower blocks will register with the lower notches 24 or upper blocks, thereby providing an upwardly inclined flue passage between the blocks and through the adjoining upper and lower faces of the blocks. Since the' blocks I8 are straight, a vertical flue passage 26 is provided upon each side of the stove adjacent the outer face throughout the entire heighth of the flue blocks. Furthermore, by having the notches 24 extending at an incline from the lower edges of the blocks upwardly toward the outer faces of the blocks, the inner edges` 2l of the blocks will constitute a shield to prevent the flue openings extending between the blocks from becoming clogged since the fuel will naturally form across the iue openings between the blocks in the manner as shown in Figure 9, thereby permitting gases and fumes to pass up through the flue openings formed by the notches 24 and 25 in the direction of the arrows indicated in Figure 9.

From the foregoing description it will be seen that a very simple and ecient means has been provided for building-up a nue upon opposite sides of a stove or other heating apparatus involving a plurality of super-imposed specially constructed blocks resting upon segmental base blocks wherein the super-imposed flue blocks are provided with straight outer faces which span the base blocks to provide an under the ilue draft, and wherein various flue blocks are mounted one upon the other and are provided with registering upwardly inclined notches to provide an upwardly inclined draft from the combustion chamber up through' the flue channels 26. By means of the specially constructed blocks which have been illustrated and described, a very simple and efiicientmeans is provided wherein the flue of the stove may be renewed or replaced should occasion arise, and wherein the flue may be easily built-up to properly protect the metal portions of the stove and at the same time provide an eillicient draft, avoiding gases and fumes and facilitating the burning of the fuel, thereby operating in a most economical manner.

It should be understood that the blocks I4 may be made of any metal such as is ordinarily provided in castings of this character, but the ue blocks are preferably formed of re brick or other suitable material which will be fire-resistant. These flue blocks may be made of clay or as stated above of any heat-resistant material and the fiues may be constructed to any suitable heighth by adding one or more layers of fiue blocks. Furthermore, the flue blocks may be made of any suitable width to be accommodated in any particular style of stove, and the ilues are self-cleaning and will not become clogged because of the formation ofthe notches 24 and 25 which are inclined upwardly toward the flue passages 26 and downwardly toward the combustion chamber. Because of the structure illustrated and described explosions of confined gas in the stove will be avoided due to the eiiicient draft and the various outlets provided for the escape of gas out through the iiue passages. All gas and soot is burned in the combustion chamber at the same time the coal is being burned. By having the open spaces under the flue due to the shape of the segmental blocks I4 next to the burning coal, th'e flame may pass up the ue at once when refilling the stove.

` This is possible due to the fact that the flue blocks which are straight span the curved or segmental block castings I4 as above described. These blocks I4 because of their shape will protect the outside drum or barrel of the stove from burning out. As clearly illustrated the flue blocks are so shaped that when they are assembled a plurality of pockets are provided at the draft holes or slots around the entire area of the flue and because of the manner in which these slots are protected as above described, these slots will not become clogged and are self-cleaning because of the fact that they incline downwardly toward the combustion chamber while at the same time gas and name may have a free passage upwardly through the combustion chamber.

It should be understood that detail changes in the construction may be employed without departing from the spirit of the invention, so long as such changes fall within the scope of the appended claims.

Having described the invention,l what is claimed as new is:

1. In combination with a stove, a grate and supporting ring, a iiue supporting means carried by the ring and comprising a plurality of segmental blocks, each segmental block being outwardly curved and having vertically extending inwardly projecting tapering ribs, ea`ch block having vertical side edges inwardly inclined in a manner whereby a series of segmental blocks may be arranged to fit the conventional lining of a stove, the lower edges of the vertical ribs being notched adjacent the inner faces thereof, the ring having a shoulder portion for receiving the notches in a manner whereby the segments will be firmly held in anchored relation, a flue lining having transversely extending straight walls spanning the curved segments to provide a space between the flue lining and the segments and thereby providing an upwardly extending draft passage, the flue lining being spaced from the drum to provide a vertically extending flue passage between the lining and the drum.

2. In combination with rafstove, a grate, a grate supporting ring, affine supporting means carried by the ring and comprising a plurality of segmental blocks, each segmental block being outwardly curved and having vertically extending inwardly projecting tapering ribs, each block having vertical side edges inwardly inclined in a manner whereby a series of segmental blocks may be arranged to fit the conventional lining of a stove, the lower edges of the vertical ribs being notched adjacent the inner faces thereof, the ring having a shoulder portion for receiving the notches in a manner whereby the segments will be firmly held in anchored relation, a flue formed of a plurality of ue blocks having transversely extending straight walls spanning the curved segments to provide spaces between the flue blocks and the segments and thereby providing upwardly extending draft passages, the flue blocks being spaced from the drum upon opposite sides of the stove to provide vertically extending ue passages between the lining and the drum, said flue blocks being arranged one superimposed upon the other, and said last mentioned blocks having upwardly inclined registering ports extending from the inner toward the outer faces of the blocks. f

3. A ue lining supporting segmental block comprising an arc-shaped body having vertically extending ribs, the ribs being inwardly extending with respect to the body, the side edges of the body being inwardly inclined to permit a series of blocks to be arranged in substantially circular formation, andthe lower edge of each rib being notched near its inner edge at the bottom thereof to provide a grate-anchoring'means.v

4. A flue lining block for use in building flue linings for stoves and the like, comprising a reresistant body, said body having a straight outer wall and an inclined inner wall, the side edges of the body being inclined from the straight outer wall toward the inclined inner wall, the block having an inclined notch extending upwardly from the bottom of the block from a point inset from the inner wall, the notch being inclined upwardly toward the outer wall, the block also having a second notch near the top thereof in alignment with the iirstmentioned notch, the second mentioned notch being inclined upwardly from the face of the inner Wall to a point inset from the top of the outer wall in a manner whereby a series of blocks may be set one upon the other to provide upwardly and outwardly inclined nue passages between the abutting upper and lower edges of the respective blocks when set one upon the other.

5. A flue lining comprising a plurality of superimposed blocks, the lower edge of the upper block resting upon the upper edge of the block next below, said blocks having straight transverse faces, said superimposed blocks having registering upwardly and outwardly inclined notches in their'abutting upperand lower edges to provide upwardly and outwardly inclined draft passages between the assembled blocks, and the lower edge of said upper block protruding inwardly beyond the upper'edge of the block next below to provide -a shield and batiie for the draft passages between the`blocks.l

g OSCAR KRINER. 

